Refluxing a Reaction - Dixie State University

• To reflux a reaction, add all of the reagents to a conical vial or round bottom flask as directed. Add a spin vane (conical vial) or a spin bar (round bottom flask) and top it with the reflux condenser, securing it with a clamp (attach the clamp to the condenser - if you attach it …

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2. Equip the round bottom flask with a Claisen head for a thermometer and condenser as well as a stir bar. 3. Heat the solution using a heating mantle to an internal temperature between 75 and 85 degrees Celsius while stirring. (Monitor the temperature by ensuring the thermometer bulb is a quarter of an inch away from the bottom of the flask). 4.

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May 14, 2017· 250ml 24/40 Round Bottom Flask 200mm 24/40 Liebig Condenser . There was a problem filtering reviews right now. Please try again later. R. Kilgore. 5.0 out of 5 stars . there was a slight bubble in the side wall of one of the round bottom ground glass joints 2) the condenser outer tubing is entirely too big and requires more water than it .

Condenser (laboratory) - Wikipedia

Trapezoids at top and bottom are ground glass joints that connect condenser to rest of apparatus (for example, in a reflux, to a boiling flask at bottom, drying tube at top). Right: Example of condenser use in a simple laboratory operation.

How to set up a reflux apparatus - Sites at Penn State

• Clamp the flask over the heating mantle. Make sure the bottom of the flask is well covered by the sand to achieve sufficient heat transfer. • Clean the reflux condenser and insert it to the round bottom flask. Make sure the glass joints are lightly greased with silicon. • Clamp the reflux condenser to the iron stand in the upright position.

Reflux Condenser - an overview | ScienceDirect Topics

Typically, the polymerizations were conducted in a 500-mL round-bottom flask equipped with a reflux condenser, nitrogen inlet, and a Teflon stirrer. First, the initiator was combined with the monomer using a magnetic stirrer, to ensure its complete dissolution in the monomer phase.